19. Inter Milan (Italy)

We begin with Inter Milan, not to be confused with its rival AC Milan, who it shares the 80,000 capacity San Siro Stadium with. Down two places from the season before, the club has the lowest matchday revenue of any club on the list, but sponsorship from Nike and Pirelli continues to bring in the money. A failure to qualify for any European championships in 2015/16 will hurt TV revenues.

18. Everton (UK)

Liverpool's neighbour and rival, Everton are having a disappointing season in the Premier League but fare well when it comes to money. Farhad Moshiri, a British Iranian businessman, has a 49% stake in the club. Broadcast rights, which accounts for 69% of the club's revenue, rose to £86.8 million last season, while ticket sales are at a ten year high.

17. Newcastle United (UK)

Reuters

2014/15 Revenue: €169 million

(£133 million; $192 million)

Newcaslte has a big fanbase, which means big money, but it stands to lose a chunk of that if it gets relegated from the Premier League this season. The club is owned by British billionaire Mike Ashley, who is disliked by fans, and the Sports Direct owner has suggested he'd like to sell up when wins its next trophy.

16. AS Roma (Italy)

AS Roma is the fifth most supported club in football mad Italy, so the club has deep pockets. As it happens, it's using that money to build a new stadium this year, said to be inspired by the Colosseum.

15. Atlético Madrid (Spain)

Another Club that's moving to a new, bigger stadium this year, Atletico Madrid enjoys royal patronage: Felipe VI, the current king of Spain, has been the honorary president of the club since 2003. Barcelona's recent dramatic drop off in form has also left Atletico in with a chance of winning La Liga this season.

14. AC Milan (Italy)

Down two places from last year, AC Milan is one of many clubs on the list with a high profile majority shareholder — in this instance Italy's former Prime Minister Silvio Berlusconi. Matchday revenue in 2014/15 was €2.6 million lower than the previous year due to the club playing fewer home games, while the absence of any UEFA presence saw a drop in TV revenue.

13. Schalke 04 (Germany)

Up one place from the season before, the "04" comes from when the club was founded in 1904 in case you were wondering. It has a well-known rivalry with German neighbours Borussia Dortmund, who we'll be seeing later on. Schalke have jumped on football's international appeal, with over 20 club media channels and region specific content in five languages, that helps shore up revenue from overseas.

12. Tottenham Hotspur (UK)

Tottenham has become a serious contender against Leicester FC for the Premier League title this season, but it was already raking it in last year thanks to a superb half decade. Taking pride of place as one of the world's oldest clubs — founded in 1882 — it's currently owned by the English National Investment Company.

10. Juventus (Italy)

Founded 1897 a group of young Torinese students, it's safe to say Juventus became bigger than any of them could have imagined. It's the best-supported football club in Italy, with over 12 million supporters — approximately 29% of the total Italian football fanbase.

9. Liverpool (UK)

Despite mixed success over the last few seasons, Liverpool fans are in an upbeat mood thanks to their charismatic new manager Jurgen Klopp. The Merseyside club are also in with a shout of winning the Europa League this year. The club is one of a number of Premier League teams to have caught the eye of American investors: at present, it's owned by the Fenway Sports Group, who also own the Boston Red Sox baseball team.

8. Chelsea (UK)

London club Chelsea has had a dreadful season, which resulted in the firing of manager Jose Mourinho, but at least its revenues are sky high, thanks in part to the club lifting the Premier League trophy last season. Russian billionaire Roman Abramovich bought the club in 2003 and his continued investment has (mostly) kept fans happy since.

7. Arsenal (UK)

London club Arsenal boasts the fifth largest fanbase in the world on social media and is worth over $1.3 billion according to Forbes magazine. A lot of its success is down to its manager Arsene Wenger, who has served the club for almost two decades.

6. Manchester City (UK)

Winners of the Premier League title in 2012 and 2014, Man City is owned by investors of the Abu Dhabi United Group who are seeking to turn the club into a dominant force in European football. Premiership glory looks set to elude the team this season, but there's always next year.

5. Bayern Munich (Germany)

Down two places from last year, Bayern Munich continues to rake it in. The club counts former players Hopfner and Rummenigge as its President and Chairman respectively, who took them to championship glory last season. Matchday revenue grew marginally to €89.8 million, as average league attendances rose to 72,882 following approval to increase the capacity of the Allianz Arena to just over 75,000

4. Paris Saint-Germain (France)

Alex Livesey/Getty Images

2014/15 Revenue: €481 million

(£380 million; $547 million)

France's only club on the list is also one of the wealthiest in the world. It's currently owned by the Qatar Investment Authority, which has ploughed $340 million into the club since 2012, allowing it to buy some of the world's most expensive players, build its brand, and cement its league success.

3. Manchester United (UK)

Michael Regan/Getty Images

2014/15 Revenue: €520 million

(£411 million; $592 million)

Fans may be missing the Alex Ferguson-led glory days, but the global brand of Manchester United still gave it the biggest revenues of any English club in the 2014/15 season. It's also one of the few clubs in the world to have gone public, debuting on the New York stock exchange in 2012.

2. FC Barcelona (Spain)

David Ramos/Getty Images

2014/15 Revenue: €561 million

(£443 million; $638 million)

Home of Lionel Messi — the world's best player in many people's eyes — Barcelona rises two places from the previous season. Its ownership structure is something of a cooperative: it is not possible to purchase shares in the club, but only membership. As of 2016, the club has 140,000members.

1. Real Madrid (Spain)

Paul White/AP

2014/15 Revenue: €577 million

(£456 million; $657 million)

The biggest money making team of last season was voted by FIFA as the European club of the 20th century, and its fortunes are only getting better this millennium. Real Madrid has some of the world's most expensive players, including Cristiano Ronaldo, but its revenue to wage ratio is in good health thanks to high ticket, shirt, and TV rights sales. Expect it to be number one for many years to come.